Ok I'm a bit stumped. When I'm home here in MT our altitude is about 3000' & air is dry but we still have lots of moisture but it is cold about 30-40°. Cold damp air outside but no windows open in house cuz it's cold. My hips feel slightly inflamed with slight nerve pain in my right leg & big toe. I spent a week in FL without any pain or nerve pain, it was warm about 65-75° daily & slightly humid, & it felt great!. Home 1 day & this all starts up again. Is it the dry cold air? We have a humidifier attached to our furnace so we're getting humidity but maybe not enough???